Build failed. https://zuul.opendev.org/t/openstack/buildset/8f7aeff868f346c7a99377181be82aa5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/14030fa8a06d482ba12f1368fe9fd297 : SUCCESS in 5m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ebf42d667f0a4601b1729efbe7b38e15 : SUCCESS in 6m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8c0261323ab94f338aee9cc97103157a : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/994cafabfde34e75a48a76fb7841de37 : FAILURE in 5m 06s